Measuring weather.
Definitions:
- Anemometer:
- Beaufort wind scale:
MATERIALS
- PLastic lid x4
- tape
- pencil
- pin
- skewers x2
STEPS
- Get all the materials you need.
- Tape plastic lids to the skewers. (two on each skewer.)
- Tape the two skewers together.
- Pin the skewers to the pencil.
- Test to make sure it spins.
- Go to winding spaces to see the wind speed.
Group Investigation.
Groups size: 5
Roles:
Groups size: 5
Roles:
- Timekeeper ( watch)
- Counter
- Recorder ( Chromebook or refill )
- Anemometer Manager ( Anemometer)
- Wind Manager
Instructions:
- Go to the measuring place and set up your wind gauge.
- Make sure everyone in your group is ready to start their roles.
- Record how many times it spins and record it in the table below.
- Count the number of spins in 15 seconds.
- Record it on your chart.
FINDINGS
Place name on school grounds | Number of Spins in 15 seconds | |
1. | Field | 0.5 |
2. | Old J Block site | 1 |
3. | Grass hill in the quad | 1 |
4. | Tennis Court gate | 0 |
CONCLUSION:
There was much wind where we went today so the number of spins would be a low amount.
The places that had the most wind were the grass hill in the quad and the old J block site.
The field was the second most windest place in the school because it spun half the way around.
The Tennis Court was not windy at all and it spun 0 times.
Wind
Beaufort
Force |
Wind Speed
(KPH) |
Spins
|
Indicators
|
Terms Used in NWS Forecasts
|
0
|
0-2
|
0
|
Calm; smoke rises vertically.
|
Calm
|
1
|
2-5
|
10
|
Shown by direction of wind smoke drift, but not by wind vanes.
|
Light
|
2
|
6-12
|
40
|
Wind felt on face, leaves rustle; ordinary vanes moved by wind.
|
Light
|
3
|
13-20
|
80
|
Leaves and small twigs in constant motion; wind extends light flag.
|
Gentle
|
4
|
21-29
|
130
|
Raises dust and loose paper; small branches are moved.
|
Moderate
|
5
|
30-39
|
190
|
Small trees in leaf begin to sway; crested wavelets form on inland waters.
|
Fresh
|
6
|
40-50
|
250
|
Large branches in motion; whistling heard in telephone wires; umbrellas used with difficulty.
|
Strong
|
7
|
51-61
|
320
|
Whole trees in motion; inconvenience felt walking against the wind.
|
Strong
|
8
|
62-74
|
390
|
Breaks twigs off trees; generally impedes progress.
|
Gale
|
9
|
75-87
|
470
|
Slight structural damage.
|
Gale
|
10
|
88-101
|
550
|
Seldom experienced inland; trees uprooted; considerable structural damage occurs.
|
Whole gale
|
11
|
102-116
|
640
|
Very rarely experienced inland; accompanied by widespread damage.
|
Whole gale
|
12
|
117 or more
|
730+
|
Very rarely experienced; accompanied by widespread damage.
|
Hurricane
|
Based on your findings what was the Wind Speed and the Beaufort Wind Force for each area.
BYE!
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